One of the principle practices in Scrum (and in fact most, if not all, agile methods) is the use of “cross-functional” teams. Somewhat surprisingly, there is often resistance at the team level to creating these cross-functional teams, but sometimes this is a result of misunderstanding what we mean when we say that a team is cross-functional.
Precision of Measurement Is No Guarantee of Usefulness of What’s Measured
One of the main myths of traditional project management relates to measurement precision. Traditional project managers have numerous statistical tools in their arsenal. Such measures as earned value or cost performance indicators etc. are touted as providing a precise scientific measure of how we’re doing.